NCLEX-RN
NCLEX RN Predictor Exam
1. In the Gram Stain procedure, which component acts as the mordant?
- A. Crystal violet
- B. Methyl alcohol
- C. Iodine
- D. Safranin
Correct answer: C
Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.
2. In which of the following ways can a nurse promote sleep for a client experiencing insomnia?
- A. Assist the client in using the bathroom one hour after going to bed
- B. Give the client a massage before bedtime
- C. Tuck bed sheets and blankets tightly around the client once settled in bed
- D. Give the client a pair of socks to wear if their feet become cold
Correct answer: D
Rationale: A nurse can promote sleep for a client experiencing insomnia by addressing factors that may hinder sleep. Cold feet can disrupt sleep, so providing the client with socks to keep their feet warm can enhance comfort and aid in promoting sleep. The correct answer focuses on a direct intervention to address a specific issue that can impact sleep quality. Choices A, B, and C do not directly address the issue of cold feet, which is a common problem that can interfere with sleep in individuals with insomnia. Assisting the client to use the bathroom, giving a massage in the morning, or tucking in bed sheets tightly do not target the discomfort caused by cold feet, making them less effective interventions for promoting sleep in this scenario.
3. The nurse should wash from the ________________________ when washing a patient's eye area.
- A. outer canthus to the inner canthus
- B. inner canthus to the outer canthus
- C. internal nares to the external nares
- D. external nares to the internal nares
Correct answer: B
Rationale: When washing a patient's eye area, it is important to start from the inner canthus (closest to the nose) and move towards the outer canthus. This direction prevents any contaminants or debris from the outer area of the eye from moving towards the inner, more sensitive area. Choices C and D are incorrect as they pertain to the nasal passages (nares), which are not relevant when washing the eye area.
4. When preparing to perform a physical examination on an infant, what should the nurse do?
- A. Have the parent remove all clothing except the diaper.
- B. Instruct the parent not to feed the infant immediately before the examination.
- C. Allow the infant to suck on a pacifier during abdominal auscultation.
- D. Ensure the parent is present during the examination.
Correct answer: A
Rationale: For performing a physical examination on an infant, it is important to have the parent remove all clothing except the diaper to allow for a thorough examination while ensuring the infant remains comfortable. It is recommended not to feed the infant immediately before the examination but rather 1 to 2 hours after feeding when the baby is neither too drowsy nor too hungry. While a pacifier may be used during invasive assessments or if the infant is crying, it is not typically necessary during abdominal auscultation. Having the parent present during the examination is important for the infant's security and for the parent to understand the process; however, the clothing should still be removed except for the diaper to facilitate a comprehensive assessment.
5. When assessing a pulse, what should be noted?
- A. Rate
- B. Rate and quality
- C. Rate, quality, and fullness
- D. Rate, quality, fullness, and regularity
Correct answer: C
Rationale: When assessing a pulse, it is important to note the rate (number of beats per minute), quality (regular or irregular), and fullness (thread and weak or full and bounding). These aspects provide crucial information about the patient's cardiovascular status. Regularity, as mentioned in option D, is not typically assessed during a pulse check and is not necessary for routine pulse assessment. Choice A is too limited as it overlooks important aspects beyond just the rate. Choice B improves by adding quality but still lacks the fullness aspect. Choice C is the most comprehensive and accurate as it includes all three essential aspects for a thorough pulse assessment.
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